{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9712519","patent":{"patent_number":"US-9712519","title":"Efficient encryption, escrow and digital signatures","assignee":null,"inventors":[],"filing_date":"2015-08-25T00:00:00.000Z","publication_date":"2017-07-18T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04L","H04L"],"num_claims":4,"abstract":"A network server is operated so as to facilitate legal eavesdropping by receiving, from the first user via a network, a session key (SK) encrypted with a second user's public key, kpubU2, and the SK encrypted with an escrow server's (ES) public key, kpubES. The kpubU2 key is the public key of the second user asymmetric private/public key pair kpriU2/kpubU2 The kpubES key is the public key of the ES asymmetric private/public key pair kpriES/kpubES. The received SK encrypted with kpubES is stored. The SK encrypted with kpubU2 is transmitted to the second user via the network. A message encrypted with the SK is received from one of the first and the second users via the network, stored, and transmitted to the other of the first and the second users via the network."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Efficient encryption, escrow and digital signatures","description":"A network server is operated so as to facilitate legal eavesdropping by receiving, from the first user via a network, a session key (SK) encrypted with a second user's public key, kpubU2, and the SK e","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9712519","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9712519","citation_suggestion":"Patentable. \"Efficient encryption, escrow and digital signatures\" (US-9712519). https://patentable.app/patents/US-9712519","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9712519","json":"https://patentable.app/api/llm-context/US-9712519","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:23:45.628Z"}